//
//  InputEmailPopupView.swift
//  QuickLocation
//
//  Created by 八条 on 2026/6/30.
//

import UIKit
import RxSwift
import RxCocoa

class InputEmailPopupView: UIView {

    private static let shared = InputEmailPopupView(frame: CGRect(origin: .zero, size: kScreenSize))

    var disposeBag = DisposeBag()
    
    private var completion: ((String) -> Void)?
    
    static func show(completion: @escaping ((String) -> Void)) {
        guard let superView = kKeyWindow else {
            return
        }
        
        if InputEmailPopupView.shared.superview != nil {
            InputEmailPopupView.shared.removeFromSuperview()
            InputEmailPopupView.shared.bgView.frame = .zero
        }
        InputEmailPopupView.shared.bgView.alpha = 1
        InputEmailPopupView.shared.bgView.frame = CGRect(x: 0, y: 0, width: kScreenWidth, height: kScreenHeight)
        superView.addSubview(InputEmailPopupView.shared)
        superView.bringSubviewToFront(InputEmailPopupView.shared)
        
        UIView.animate(withDuration: 0.25) {
            InputEmailPopupView.shared.bgView.alpha = 1
        }
        
        InputEmailPopupView.shared.completion = { text in
            completion(text)
            InputEmailPopupView.dismiss()
        }
    }
    
    /// 关闭
    static func dismiss() {
        guard InputEmailPopupView.shared.superview != nil else { return }

        UIView.animate(withDuration: 0.25, delay: 0, options: [.curveEaseIn]) {
            InputEmailPopupView.shared.bgView.alpha = 0
        } completion: { _ in
            InputEmailPopupView.shared.removeFromSuperview()
        }
    }
    
    private func setupRx() {
        emailTF.rx.controlEvent(.editingDidEndOnExit)
            .subscribe(onNext: { [weak self] in
                guard let self = self else { return }
                self.emailTF.resignFirstResponder()
            })
            .disposed(by: disposeBag)
        
        confirmBtn.rx.tap.subscribe(onNext: { _ in
            guard let text = self.emailTF.text, String.checkEmailAddressIsValid(text) else {
                DLToast.show(text: "请输入正确的邮箱")
                return
            }
            self.completion?(text)
        }).disposed(by: disposeBag)
        
        cancelBtn.rx.tap.subscribe(onNext: { _ in
            InputEmailPopupView.dismiss()
        }).disposed(by: disposeBag)
    }
    
    private lazy var bgView: UIView = {
        let view = UIView()
        view.backgroundColor = .black.withAlphaComponent(0.5)
        return view
    }()
    
    lazy var infoView: UIView = {
        let view = UIView()
        view.backgroundColor = .white
        view.cornerRadius = 15
        return view
    }()
    
    lazy var titleLab: UILabel = {
        let label = UILabel()
        label.text = "添加邮箱"
        label.textColor = UIColor(hexStr: "#333333")
        label.font = .systemFont(ofSize: 20, weight: .medium)
        return label
    }()
    
    lazy var textFieldView: UIView = {
        let view = UIView()
        view.cornerRadius = 10
        view.backgroundColor = UIColor(hexStr: "#F5FBFF")
        return view
    }()
    
    lazy var emailTF: UITextField = {
        let textField = UITextField()
        textField.font = .systemFont(ofSize: 16, weight: .medium)
        textField.placeholder = "请添加邮箱地址"
        textField.returnKeyType = .done
        return textField
    }()
    
    lazy var confirmBtn: UIButton = {
        let btn = UIButton(type: .custom)
        btn.setTitle("确定", for: .normal)
        btn.setTitleColor(.white, for: .normal)
        btn.titleLabel?.font = .systemFont(ofSize: 16, weight: .medium)
        btn.setBackgroundImage(UIImage(named: "Common/button_bg_2"), for: .normal)
        btn.cornerRadius = 25
        return btn
    }()
    
    lazy var cancelBtn: UIButton = {
        let btn = UIButton(type: .custom)
        btn.setTitle("取消", for: .normal)
        btn.setTitleColor(UIColor(hexStr: "#16B3FF"), for: .normal)
        btn.titleLabel?.font = .systemFont(ofSize: 16, weight: .medium)
        btn.backgroundColor = .clear
        return btn
    }()
    
    // MARK: - Init
    override init(frame: CGRect) {
        super.init(frame: frame)
        backgroundColor = .clear
        addSubview(bgView)
        
        bgView.addSubview(infoView)
        infoView.addSubview(titleLab)
        infoView.addSubview(textFieldView)
        textFieldView.addSubview(emailTF)
        infoView.addSubview(confirmBtn)
        infoView.addSubview(cancelBtn)
        
        infoView.layoutChain
            .edgesHorzontal(30)
            .heightToWidth(296/315)
            .centerY()
        
        titleLab.layoutChain
            .top(24)
            .centerX()
        
        textFieldView.layoutChain
            .topToBottomOfView(titleLab, offset: 28)
            .edgesHorzontal(20)
            .height(62)
        
        emailTF.layoutChain
            .edgesHorzontal(15)
            .edgesVertical()
        
        confirmBtn.layoutChain
            .topToBottomOfView(textFieldView, offset: 46)
            .edgesHorzontal(20)
            .height(50)
        
        cancelBtn.layoutChain
            .topToBottomOfView(confirmBtn)
            .edgesHorzontal(20)
            .height(50)
        
        setupRx()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

}